TrekGEO > Mineral Trail > Kanto region > Gunma pref. > Rhodonite

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Mogurazawa Mine

Kamibishi, Hishi village, Kiryu city, Gunma pref., Japan

Source for manganese


Field of view: 30 mm. Purple rhodonite. The purple grains are rhodonite. The translucent white parts are quartz.

Recovered from a chert-hosted bedded manganese deposit subjected to Albite-Epidote-hornfels facies contact metamorphism.

Rhodonite from this location was described in 1954.


Field of view: 30 mm. Pink rhodonite. The pink grains exhibiting perfect cleavage are rhodonite. The transparent to white parts with a vitreous luster are quartz.

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